For glaze, in a small bowl stir together marmalade, lemon or lime juice, soy sauce, garlic, and curry powder.
Brush some of the glaze over both sides of turkey steaks.
Grill turkey on an uncovered grill directly over medium coals for 6 minutes.
Turn and brush with glaze.
Grill 6 to 9 minutes more or till turkey is tender and no longer pink.